This is an updating graph of background radiation in my home town in Western Australia. It is updated 6 hourly. It runs whenever I have my Geiger counter on. Typically the background is about 60 counts per minute (CPM).
“Continue reading” for sources of background radioactivity and links.
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This is a version of a Tesla coil where the primary is driven by a vacuum tube (valve) oscillator. “Continue reading” for more details and photos.
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A Geiger counter measures various types of ionising radiation such as Gamma rays. Shown here with antique Uranium marbles that were bright due to some fluorescence.
“Continue reading” for a hotter Uranium sample, specifications and links…
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